Setup Sequence - Pioneer DVR-520H-S Service Manual

1

7.1.9 SETUP SEQUENCE

QQ
3 7 63 1515 0
Tuner/FL U-com
Connect power cord.
A
Tuner/FL microcomputer starts up.
Initialization of peripheral-circuit
register, RAM, etc.
"POWER ON" displayed
on FL display
Clock indication on FL display
B
Power ON ?
Yes
Power ON, cancellation of reset
"POWER ON" displayed
on FL display
C
TE
L 13942296513
Waiting
NG
for communication to be
established
OK
Key-input and channel data
transmitted to the system-control
D
computer, and responding to
instructions from it,
indication displayed on FL
display and channel switching
performed
E
www
F
102
1
http://www.xiaoyu163.com
2
System Codec IC (Inital Program Loader)
System microcomputer starts up.
LSI Check
OK
FLASH Check
OK
Firmware stored in Flash memory
is developed in SD-RAM expanding
the compressed data.
No
Jumping to developed firmware
System Codec IC (Firmware)
Initialization of peripheral-circuit
register, RAM, etc.
Starting communication
with Tuner/FL microcomputer
Obtaining LD
temperature data from drive.
Is temperature below
59°C?
Is ID check of drive OK?
Yes
Is starting/ID check of
HDD OK?
Yes
Is disc in?
Yes
Is disc valid?
Yes
Repair required?
Yes
Repair process
Playback requested?
x ao
Yes
y
Playback
. i
DVR-520H-S
2
http://www.xiaoyu163.com
3
8
NG
LSI NG displayed
on FL display
NG
Downloading through
RS232C required.
"MONITOR" displayed
on FL display
Request for power off of
system-control computer made to
Tuner/FL microcomputer
No
System-control computer is turned off
Q Q (entering standby) following request
3 6 7 1 3
from Tuner/FL microcomputer
No
"CPRM ERR" displayed on FL display
No
"HDD ERR" displayed on FL display
No
∗1: If both the drive ID check and
starting/ID check of HDD failed,
"CPRM ERR" is first displayed
on FL display.
No
No
Tray Open
No
u163
Stop
.
3
4
2 9 9 4 2 8
DVD-R/RW Drive
Drive microcomputer starts up.
Initialization of peripheral-circuit
register, RAM, etc.
No
Has command arrived?
Yes
ATA/ATAPI command processing
1 5 0 5 8 2 9 9 4
(∗1)
(∗1)
m
co
4
9 9
2 8 9 9